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Find the World's Best Unix Freelancers

Upwork is the leading online workplace, home to thousands of top-rated freelancers. It’s simple to post your job and get personalized bids, or browse Upwork for amazing talent ready to work on your Unix project today.

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Kyrylo P. - C/C++ Software Engineer & Architect

Kyrylo P.

C/C++ Software Engineer & Architect

$36/hr
614 hours
Ukraine
100% JOB SUCCESS
“I liked working with Kyrylo very much. His technical ability, his patience and his professionalism made this project to be delivered successfully. I'm very pleased with his work.”
  • Video Streaming
  • C
  • C++
  • Unix
  • Qt
Josep E. - Ruby on Rails and Full Stack Web Developer

Josep E.

Ruby on Rails and Full Stack Web Developer

$75/hr
61 hours
Spain
New to Upwork
  • Ruby
  • Ruby on Rails
  • jQuery
Artem B. - Android/iOS Developer

Artem B.

Android/iOS Developer

$45/hr
1,132 hours
Belarus
100% JOB SUCCESS
“We have Artem to be an excellent Android developer. After our previous experience (not via Upwork) it was a refreshing change to have someone who quickly understood our requirements,...”
  • Android App Development
Hazem A. - Expert graphic designer & web designer

Hazem A.

Expert graphic designer & web designer

$12/hr
7 hours
Egypt
100% JOB SUCCESS
“Hazem is great Designer Highly recommended!”
  • Adobe Photoshop
  • Web design
Kashif T. - Senior iOS/ Android Developer

Kashif T.

Senior iOS/ Android Developer

$35/hr
142 hours
Pakistan
100% JOB SUCCESS
“Kashif has been excellent in almost every area you would expect. Great command of English, always available, and most importantly, the highest quality of work. It was a great pleasure...”
  • iOS Development
  • Unity
Jay H. - Web developer/Consultant

Jay H.

Web developer/Consultant

$52.22/hr
196 hours
Canada
100% JOB SUCCESS
“Great job as always!”
  • AngularJS
  • PHP
  • HTML
  • HTML5
  • CSS
Md. M. - Senior Pro Web Developer

Md. M.

Senior Pro Web Developer

$18/hr
40 hours
Bangladesh
100% JOB SUCCESS
“Mizanur Rahman is very good and I highly recommend him. He is a self learner and follows instructions very well. When he did make a mistake, he fixed it no problem and without...”
  • HTML
  • HTML5
  • PHP
  • CSS3
  • CSS
  • jQuery
Andrew I. - UI Graphic Designer

Andrew I.

UI Graphic Designer

$20/hr
0 hours
Belarus
100% JOB SUCCESS
  • Adobe Photoshop
  • 3ds Max
Muhammad W. - PHP/Mysql Programmer

Muhammad W.

PHP/Mysql Programmer

$12.22/hr
418 hours
Pakistan
100% JOB SUCCESS
“Waqas is full of all traits required of an excellent contractor. Among them are great communication skills, a willingness to take initiative, outstanding technical knowledge,...”
  • PHP
  • MySQL Administration
Feliks B. - full stack web-developer

Feliks B.

full stack web-developer

$66.67/hr
2,087 hours
Ukraine
100% JOB SUCCESS
“Felix is an incredible developer! He works hard and passionately, always striving for perfection. He understands our project in detail, communicates well, and often recommends...”
  • Ruby on Rails
  • Backbone.js
Andrej S. - UX Designer / Front end dev.

Andrej S.

UX Designer / Front end dev.

$44.44/hr
639 hours
Slovenia
100% JOB SUCCESS
  • Axure RP
  • HTML5
  • CSS3

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Your website or dynamic web application is a sum of layers—structure, design and content, and functionality. The technology and programming that “power” a site—what your end user doesn’t see but what makes the site run—is called the back end. Consisting of the server, the database, and the server-side applications, it’s the behind-the-scenes functionality—the brain of a site. This is the ecosystem of the database manager and the back-end developer.

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